./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:44:25,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:44:25,630 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:44:25,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:44:25,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:44:25,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:44:25,662 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:44:25,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:44:25,662 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:44:25,662 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:44:25,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:44:25,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:44:25,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:44:25,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:44:25,663 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:44:25,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:44:25,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:44:25,663 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:44:25,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:44:25,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:44:25,665 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:25,665 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:44:25,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:25,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:44:25,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:44:25,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:44:25,667 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 [2024-11-23 18:44:25,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:44:25,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:44:25,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:44:25,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:44:25,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:44:25,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-23 18:44:28,990 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/9b6691ef4/e0e74b52d6344227bf24f21a37a48d33/FLAGeb01124b2 [2024-11-23 18:44:29,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:44:29,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-23 18:44:29,285 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/9b6691ef4/e0e74b52d6344227bf24f21a37a48d33/FLAGeb01124b2 [2024-11-23 18:44:29,549 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/9b6691ef4/e0e74b52d6344227bf24f21a37a48d33 [2024-11-23 18:44:29,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:44:29,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:44:29,554 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:44:29,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:44:29,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:44:29,560 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,561 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68d04b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29, skipping insertion in model container [2024-11-23 18:44:29,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:44:29,740 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-23 18:44:29,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:44:29,796 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:44:29,808 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-23 18:44:29,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:44:29,846 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:44:29,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29 WrapperNode [2024-11-23 18:44:29,847 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:44:29,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:44:29,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:44:29,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:44:29,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,872 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,912 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 153 [2024-11-23 18:44:29,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:44:29,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:44:29,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:44:29,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:44:29,931 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,947 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:44:29,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,954 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,955 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,965 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:44:29,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:44:29,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:44:29,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:44:29,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (1/1) ... [2024-11-23 18:44:29,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:30,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:30,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:44:30,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:44:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:44:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:44:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:44:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:44:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:44:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:44:30,152 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:44:30,155 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:44:30,518 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-23 18:44:30,518 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:44:30,534 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:44:30,535 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:44:30,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:30 BoogieIcfgContainer [2024-11-23 18:44:30,536 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:44:30,539 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:44:30,539 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:44:30,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:44:30,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:44:29" (1/3) ... [2024-11-23 18:44:30,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d1ad0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:30, skipping insertion in model container [2024-11-23 18:44:30,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:29" (2/3) ... [2024-11-23 18:44:30,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d1ad0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:30, skipping insertion in model container [2024-11-23 18:44:30,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:30" (3/3) ... [2024-11-23 18:44:30,549 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-33.i [2024-11-23 18:44:30,565 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:44:30,567 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-33.i that has 2 procedures, 66 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:44:30,644 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:44:30,660 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34fa8227, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:44:30,660 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:44:30,666 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:30,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 18:44:30,674 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:30,674 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:30,675 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:30,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:30,682 INFO L85 PathProgramCache]: Analyzing trace with hash 123038288, now seen corresponding path program 1 times [2024-11-23 18:44:30,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:30,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320420234] [2024-11-23 18:44:30,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:30,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:30,949 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 18:44:30,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:30,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320420234] [2024-11-23 18:44:30,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320420234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:30,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [888012613] [2024-11-23 18:44:30,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:30,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:30,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:30,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:30,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:44:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:31,099 INFO L256 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:44:31,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-23 18:44:31,123 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:44:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [888012613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:31,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:44:31,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 18:44:31,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514612743] [2024-11-23 18:44:31,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:31,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:44:31,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:31,151 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:44:31,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:31,154 INFO L87 Difference]: Start difference. First operand has 66 states, 54 states have (on average 1.462962962962963) internal successors, (79), 55 states have internal predecessors, (79), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 18:44:31,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:31,188 INFO L93 Difference]: Finished difference Result 125 states and 197 transitions. [2024-11-23 18:44:31,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:44:31,190 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 74 [2024-11-23 18:44:31,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:31,197 INFO L225 Difference]: With dead ends: 125 [2024-11-23 18:44:31,197 INFO L226 Difference]: Without dead ends: 62 [2024-11-23 18:44:31,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:31,203 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:31,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:31,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-23 18:44:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-11-23 18:44:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.411764705882353) internal successors, (72), 51 states have internal predecessors, (72), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 90 transitions. [2024-11-23 18:44:31,240 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 90 transitions. Word has length 74 [2024-11-23 18:44:31,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:31,240 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 90 transitions. [2024-11-23 18:44:31,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 18:44:31,241 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 90 transitions. [2024-11-23 18:44:31,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 18:44:31,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:31,244 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:31,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 18:44:31,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 18:44:31,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:31,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:31,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1283939178, now seen corresponding path program 1 times [2024-11-23 18:44:31,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:31,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887737008] [2024-11-23 18:44:31,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:31,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:31,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:31,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887737008] [2024-11-23 18:44:31,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887737008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:31,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:31,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:31,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656039102] [2024-11-23 18:44:31,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:31,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:31,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:31,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:31,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:31,892 INFO L87 Difference]: Start difference. First operand 62 states and 90 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:31,927 INFO L93 Difference]: Finished difference Result 122 states and 179 transitions. [2024-11-23 18:44:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:31,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-23 18:44:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:31,929 INFO L225 Difference]: With dead ends: 122 [2024-11-23 18:44:31,929 INFO L226 Difference]: Without dead ends: 63 [2024-11-23 18:44:31,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:31,930 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 0 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:31,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:31,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-23 18:44:31,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-23 18:44:31,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 52 states have (on average 1.4038461538461537) internal successors, (73), 52 states have internal predecessors, (73), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 91 transitions. [2024-11-23 18:44:31,938 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 91 transitions. Word has length 74 [2024-11-23 18:44:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:31,940 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 91 transitions. [2024-11-23 18:44:31,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 91 transitions. [2024-11-23 18:44:31,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 18:44:31,941 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:31,942 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:31,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:44:31,942 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:31,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:31,943 INFO L85 PathProgramCache]: Analyzing trace with hash -603880808, now seen corresponding path program 1 times [2024-11-23 18:44:31,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:31,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072928958] [2024-11-23 18:44:31,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:31,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:32,184 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:32,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:32,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072928958] [2024-11-23 18:44:32,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072928958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:32,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:32,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 18:44:32,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663003701] [2024-11-23 18:44:32,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:32,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:44:32,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:32,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:44:32,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 18:44:32,188 INFO L87 Difference]: Start difference. First operand 63 states and 91 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:32,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:32,516 INFO L93 Difference]: Finished difference Result 148 states and 214 transitions. [2024-11-23 18:44:32,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:44:32,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-23 18:44:32,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:32,518 INFO L225 Difference]: With dead ends: 148 [2024-11-23 18:44:32,518 INFO L226 Difference]: Without dead ends: 88 [2024-11-23 18:44:32,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:44:32,520 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 85 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:32,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 275 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:44:32,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-23 18:44:32,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 65. [2024-11-23 18:44:32,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:32,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 93 transitions. [2024-11-23 18:44:32,540 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 93 transitions. Word has length 74 [2024-11-23 18:44:32,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:32,541 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 93 transitions. [2024-11-23 18:44:32,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:32,541 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2024-11-23 18:44:32,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 18:44:32,545 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:32,545 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:32,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:44:32,545 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:32,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:32,546 INFO L85 PathProgramCache]: Analyzing trace with hash -345715370, now seen corresponding path program 1 times [2024-11-23 18:44:32,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:32,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296565660] [2024-11-23 18:44:32,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:32,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:32,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:35,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:35,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296565660] [2024-11-23 18:44:35,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296565660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:35,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:35,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:44:35,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289531781] [2024-11-23 18:44:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:35,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:44:35,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:35,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:44:35,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:44:35,733 INFO L87 Difference]: Start difference. First operand 65 states and 93 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:36,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:36,739 INFO L93 Difference]: Finished difference Result 268 states and 388 transitions. [2024-11-23 18:44:36,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:44:36,740 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-23 18:44:36,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:36,743 INFO L225 Difference]: With dead ends: 268 [2024-11-23 18:44:36,746 INFO L226 Difference]: Without dead ends: 206 [2024-11-23 18:44:36,747 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:44:36,748 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 288 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:36,748 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 326 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:44:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-23 18:44:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 89. [2024-11-23 18:44:36,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 78 states have (on average 1.4230769230769231) internal successors, (111), 78 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:36,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-11-23 18:44:36,770 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 74 [2024-11-23 18:44:36,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:36,771 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-11-23 18:44:36,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 9 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:36,771 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-11-23 18:44:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-23 18:44:36,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:36,776 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:36,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:44:36,776 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:36,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:36,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1955107220, now seen corresponding path program 1 times [2024-11-23 18:44:36,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:36,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208879358] [2024-11-23 18:44:36,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:36,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:37,414 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:37,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:37,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208879358] [2024-11-23 18:44:37,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208879358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:37,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:37,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 18:44:37,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790640943] [2024-11-23 18:44:37,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:37,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:44:37,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:37,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:44:37,416 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:44:37,417 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:37,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:37,864 INFO L93 Difference]: Finished difference Result 207 states and 301 transitions. [2024-11-23 18:44:37,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:44:37,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2024-11-23 18:44:37,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:37,866 INFO L225 Difference]: With dead ends: 207 [2024-11-23 18:44:37,866 INFO L226 Difference]: Without dead ends: 121 [2024-11-23 18:44:37,866 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:44:37,867 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 128 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:37,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 225 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:44:37,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-23 18:44:37,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 77. [2024-11-23 18:44:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 66 states have internal predecessors, (93), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 111 transitions. [2024-11-23 18:44:37,876 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 111 transitions. Word has length 74 [2024-11-23 18:44:37,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:37,877 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 111 transitions. [2024-11-23 18:44:37,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:37,877 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 111 transitions. [2024-11-23 18:44:37,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-23 18:44:37,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:37,878 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:37,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:44:37,879 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:37,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash 212492637, now seen corresponding path program 1 times [2024-11-23 18:44:37,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:37,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841775092] [2024-11-23 18:44:37,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:37,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:37,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:37,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841775092] [2024-11-23 18:44:37,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841775092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:37,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:37,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:37,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691626977] [2024-11-23 18:44:37,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:37,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:37,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:37,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:37,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:37,935 INFO L87 Difference]: Start difference. First operand 77 states and 111 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:38,002 INFO L93 Difference]: Finished difference Result 196 states and 283 transitions. [2024-11-23 18:44:38,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:38,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2024-11-23 18:44:38,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:38,004 INFO L225 Difference]: With dead ends: 196 [2024-11-23 18:44:38,004 INFO L226 Difference]: Without dead ends: 122 [2024-11-23 18:44:38,004 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:38,005 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 54 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:38,005 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 183 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:44:38,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-23 18:44:38,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 90. [2024-11-23 18:44:38,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 79 states have (on average 1.4050632911392404) internal successors, (111), 79 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:38,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 129 transitions. [2024-11-23 18:44:38,014 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 129 transitions. Word has length 75 [2024-11-23 18:44:38,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:38,014 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 129 transitions. [2024-11-23 18:44:38,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:38,014 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 129 transitions. [2024-11-23 18:44:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-23 18:44:38,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:38,015 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:38,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:44:38,016 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:38,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:38,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2016158326, now seen corresponding path program 1 times [2024-11-23 18:44:38,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:38,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792704107] [2024-11-23 18:44:38,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:38,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:38,070 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:38,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:38,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792704107] [2024-11-23 18:44:38,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792704107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:38,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:38,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:38,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692414516] [2024-11-23 18:44:38,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:38,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:38,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:38,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:38,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:38,072 INFO L87 Difference]: Start difference. First operand 90 states and 129 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:38,131 INFO L93 Difference]: Finished difference Result 207 states and 295 transitions. [2024-11-23 18:44:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:38,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 75 [2024-11-23 18:44:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:38,136 INFO L225 Difference]: With dead ends: 207 [2024-11-23 18:44:38,137 INFO L226 Difference]: Without dead ends: 120 [2024-11-23 18:44:38,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:38,138 INFO L435 NwaCegarLoop]: 88 mSDtfsCounter, 75 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:38,139 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 143 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-23 18:44:38,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 78. [2024-11-23 18:44:38,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:38,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2024-11-23 18:44:38,155 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 75 [2024-11-23 18:44:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:38,155 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2024-11-23 18:44:38,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-11-23 18:44:38,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-23 18:44:38,156 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:38,156 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:38,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:44:38,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:38,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:38,157 INFO L85 PathProgramCache]: Analyzing trace with hash -31631447, now seen corresponding path program 1 times [2024-11-23 18:44:38,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:38,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41544343] [2024-11-23 18:44:38,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:38,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:38,295 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:38,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:38,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41544343] [2024-11-23 18:44:38,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41544343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:38,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:38,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 18:44:38,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055674045] [2024-11-23 18:44:38,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:38,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 18:44:38,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:38,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 18:44:38,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 18:44:38,298 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:38,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:38,620 INFO L93 Difference]: Finished difference Result 241 states and 333 transitions. [2024-11-23 18:44:38,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 18:44:38,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2024-11-23 18:44:38,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:38,622 INFO L225 Difference]: With dead ends: 241 [2024-11-23 18:44:38,622 INFO L226 Difference]: Without dead ends: 166 [2024-11-23 18:44:38,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:44:38,623 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 201 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:38,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 314 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 18:44:38,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-23 18:44:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2024-11-23 18:44:38,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 135 states have (on average 1.3333333333333333) internal successors, (180), 137 states have internal predecessors, (180), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 18:44:38,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 220 transitions. [2024-11-23 18:44:38,640 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 220 transitions. Word has length 76 [2024-11-23 18:44:38,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:38,640 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 220 transitions. [2024-11-23 18:44:38,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:38,641 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 220 transitions. [2024-11-23 18:44:38,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-23 18:44:38,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:38,642 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:38,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 18:44:38,642 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:38,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:38,643 INFO L85 PathProgramCache]: Analyzing trace with hash -618437461, now seen corresponding path program 1 times [2024-11-23 18:44:38,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:38,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872441866] [2024-11-23 18:44:38,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:38,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:40,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:40,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872441866] [2024-11-23 18:44:40,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872441866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:40,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:40,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 18:44:40,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046420570] [2024-11-23 18:44:40,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:40,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-23 18:44:40,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:40,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-23 18:44:40,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:44:40,132 INFO L87 Difference]: Start difference. First operand 160 states and 220 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:41,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:41,414 INFO L93 Difference]: Finished difference Result 467 states and 645 transitions. [2024-11-23 18:44:41,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 18:44:41,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2024-11-23 18:44:41,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:41,419 INFO L225 Difference]: With dead ends: 467 [2024-11-23 18:44:41,420 INFO L226 Difference]: Without dead ends: 314 [2024-11-23 18:44:41,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-23 18:44:41,422 INFO L435 NwaCegarLoop]: 57 mSDtfsCounter, 235 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:41,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 340 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-23 18:44:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-23 18:44:41,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 180. [2024-11-23 18:44:41,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 155 states have (on average 1.3483870967741935) internal successors, (209), 157 states have internal predecessors, (209), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-23 18:44:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 249 transitions. [2024-11-23 18:44:41,452 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 249 transitions. Word has length 76 [2024-11-23 18:44:41,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:41,452 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 249 transitions. [2024-11-23 18:44:41,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:41,453 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 249 transitions. [2024-11-23 18:44:41,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-23 18:44:41,456 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:41,456 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:41,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 18:44:41,457 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:41,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:41,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1436085911, now seen corresponding path program 1 times [2024-11-23 18:44:41,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:41,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006680584] [2024-11-23 18:44:41,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:41,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:41,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:41,589 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:41,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:41,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006680584] [2024-11-23 18:44:41,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006680584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:41,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:41,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:44:41,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122596104] [2024-11-23 18:44:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:41,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:44:41,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:41,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:44:41,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:41,591 INFO L87 Difference]: Start difference. First operand 180 states and 249 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:41,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:41,716 INFO L93 Difference]: Finished difference Result 504 states and 698 transitions. [2024-11-23 18:44:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:44:41,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 76 [2024-11-23 18:44:41,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:41,719 INFO L225 Difference]: With dead ends: 504 [2024-11-23 18:44:41,721 INFO L226 Difference]: Without dead ends: 331 [2024-11-23 18:44:41,722 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:44:41,722 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 61 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:41,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 174 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 18:44:41,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-23 18:44:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 260. [2024-11-23 18:44:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 224 states have (on average 1.3348214285714286) internal successors, (299), 226 states have internal predecessors, (299), 29 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-23 18:44:41,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 357 transitions. [2024-11-23 18:44:41,747 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 357 transitions. Word has length 76 [2024-11-23 18:44:41,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:41,747 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 357 transitions. [2024-11-23 18:44:41,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:41,747 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 357 transitions. [2024-11-23 18:44:41,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 18:44:41,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:41,749 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:41,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:44:41,749 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:41,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:41,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1752940520, now seen corresponding path program 1 times [2024-11-23 18:44:41,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:41,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683489682] [2024-11-23 18:44:41,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:41,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:41,934 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 18:44:41,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:44:41,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683489682] [2024-11-23 18:44:41,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683489682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:41,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122872406] [2024-11-23 18:44:41,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:41,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:41,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:41,937 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:44:41,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:44:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:42,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 18:44:42,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:42,316 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 18:44:42,316 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 18:44:42,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122872406] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 18:44:42,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 18:44:42,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 16 [2024-11-23 18:44:42,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314909910] [2024-11-23 18:44:42,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 18:44:42,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-23 18:44:42,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:44:42,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-23 18:44:42,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:44:42,538 INFO L87 Difference]: Start difference. First operand 260 states and 357 transitions. Second operand has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-23 18:44:43,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:43,337 INFO L93 Difference]: Finished difference Result 872 states and 1163 transitions. [2024-11-23 18:44:43,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-23 18:44:43,338 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) Word has length 77 [2024-11-23 18:44:43,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:43,342 INFO L225 Difference]: With dead ends: 872 [2024-11-23 18:44:43,343 INFO L226 Difference]: Without dead ends: 768 [2024-11-23 18:44:43,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=933, Unknown=0, NotChecked=0, Total=1260 [2024-11-23 18:44:43,345 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 635 mSDsluCounter, 621 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 643 SdHoareTripleChecker+Valid, 698 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:43,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [643 Valid, 698 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-23 18:44:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2024-11-23 18:44:43,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 278. [2024-11-23 18:44:43,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 220 states have (on average 1.2636363636363637) internal successors, (278), 221 states have internal predecessors, (278), 45 states have call successors, (45), 12 states have call predecessors, (45), 12 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-23 18:44:43,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 368 transitions. [2024-11-23 18:44:43,410 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 368 transitions. Word has length 77 [2024-11-23 18:44:43,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:43,411 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 368 transitions. [2024-11-23 18:44:43,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.466666666666667) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (27), 3 states have call predecessors, (27), 5 states have return successors, (27), 3 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-23 18:44:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 368 transitions. [2024-11-23 18:44:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-23 18:44:43,412 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:43,412 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:43,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-23 18:44:43,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:44:43,617 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:43,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:43,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1330238694, now seen corresponding path program 1 times [2024-11-23 18:44:43,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:44:43,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474640112] [2024-11-23 18:44:43,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:43,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:44:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:44:43,645 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:44:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:44:43,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:44:43,694 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:44:43,695 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 18:44:43,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:44:43,699 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:43,782 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:44:43,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:44:43 BoogieIcfgContainer [2024-11-23 18:44:43,787 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:44:43,788 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:44:43,788 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:44:43,788 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:44:43,789 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:30" (3/4) ... [2024-11-23 18:44:43,791 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:44:43,792 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:44:43,794 INFO L158 Benchmark]: Toolchain (without parser) took 14240.31ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 119.2MB in the beginning and 316.4MB in the end (delta: -197.2MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2024-11-23 18:44:43,794 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:44:43,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.53ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 106.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:44:43,796 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.41ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 103.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:44:43,796 INFO L158 Benchmark]: Boogie Preprocessor took 51.84ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 100.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:44:43,797 INFO L158 Benchmark]: RCFGBuilder took 562.62ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 80.3MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:44:43,797 INFO L158 Benchmark]: TraceAbstraction took 13248.33ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 79.8MB in the beginning and 316.4MB in the end (delta: -236.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2024-11-23 18:44:43,797 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 427.8MB. Free memory was 316.4MB in the beginning and 316.4MB in the end (delta: 87.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:44:43,799 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.53ms. Allocated memory is still 142.6MB. Free memory was 119.2MB in the beginning and 106.5MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.41ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 103.5MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.84ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 100.7MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.62ms. Allocated memory is still 142.6MB. Free memory was 100.7MB in the beginning and 80.3MB in the end (delta: 20.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 13248.33ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 79.8MB in the beginning and 316.4MB in the end (delta: -236.7MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 427.8MB. Free memory was 316.4MB in the beginning and 316.4MB in the end (delta: 87.0kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 71, overapproximation of someBinaryFLOATComparisonOperation at line 73, overapproximation of someBinaryFLOATComparisonOperation at line 84, overapproximation of someBinaryFLOATComparisonOperation at line 75, overapproximation of someBinaryFLOATComparisonOperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 27. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = -10; [L23] signed short int var_1_5 = 4; [L24] unsigned char var_1_7 = 200; [L25] unsigned char var_1_8 = 32; [L26] float var_1_9 = 256.5; [L27] float var_1_10 = -0.25; [L28] float var_1_11 = 0.30000000000000004; [L29] float var_1_12 = 49.5; [L30] signed long int var_1_13 = -8; [L31] unsigned char var_1_14 = 0; [L32] float var_1_15 = 0.4; [L33] signed long int var_1_16 = -256; [L34] signed long int last_1_var_1_13 = -8; VAL [isInitial=0, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=4, var_1_7=200, var_1_8=32, var_1_9=513/2] [L88] isInitial = 1 [L89] FCALL initially() [L91] CALL updateLastVariables() [L81] last_1_var_1_13 = var_1_13 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=4, var_1_7=200, var_1_8=32, var_1_9=513/2] [L91] RET updateLastVariables() [L92] CALL updateVariables() [L64] var_1_5 = __VERIFIER_nondet_short() [L65] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L65] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L66] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L66] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=32, var_1_9=513/2] [L67] var_1_8 = __VERIFIER_nondet_uchar() [L68] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_9=513/2] [L68] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_9=513/2] [L69] CALL assume_abort_if_not(var_1_8 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L69] RET assume_abort_if_not(var_1_8 <= 127) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L70] var_1_10 = __VERIFIER_nondet_float() [L71] CALL assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L71] RET assume_abort_if_not((var_1_10 >= -461168.6018427382800e+13F && var_1_10 <= -1.0e-20F) || (var_1_10 <= 4611686.018427382800e+12F && var_1_10 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=7500000000000001/25000000000000000, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L72] var_1_11 = __VERIFIER_nondet_float() [L73] CALL assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L73] RET assume_abort_if_not((var_1_11 >= 0.0F && var_1_11 <= -1.0e-20F) || (var_1_11 <= 4611686.018427382800e+12F && var_1_11 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_12=99/2, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L74] var_1_12 = __VERIFIER_nondet_float() [L75] CALL assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L75] RET assume_abort_if_not((var_1_12 >= 0.0F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 4611686.018427382800e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L76] var_1_14 = __VERIFIER_nondet_uchar() [L77] CALL assume_abort_if_not(var_1_14 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L77] RET assume_abort_if_not(var_1_14 >= 0) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L78] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L78] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L92] RET updateVariables() [L93] CALL step() [L38] COND FALSE !(var_1_5 < last_1_var_1_13) VAL [isInitial=1, last_1_var_1_13=-8, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=-256, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L41] var_1_16 = var_1_7 [L42] unsigned char stepLocal_1 = var_1_7; VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_13=-8, var_1_14=0, var_1_15=2/5, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L43] COND TRUE ! var_1_14 [L44] var_1_13 = var_1_8 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_13=0, var_1_14=0, var_1_15=2/5, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L52] var_1_15 = var_1_11 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L53] EXPR var_1_13 ^ var_1_7 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-10, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L53] signed long int stepLocal_0 = (var_1_13 ^ var_1_7) + var_1_16; [L54] COND FALSE !(stepLocal_0 < -1) [L57] var_1_1 = (128 - (var_1_7 + var_1_7)) VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] EXPR var_1_7 | var_1_16 VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] EXPR var_1_13 & (var_1_7 | var_1_16) VAL [isInitial=1, last_1_var_1_13=-8, stepLocal_1=200, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L59] COND FALSE !(var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) [L93] RET step() [L94] CALL, EXPR property() [L84] EXPR var_1_13 ^ var_1_7 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR (((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR var_1_7 | var_1_16 VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR var_1_13 & (var_1_7 | var_1_16) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84] EXPR (((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L84-L85] return ((((((((var_1_13 ^ var_1_7) + var_1_16) < -1) ? (var_1_1 == ((signed short int) 8)) : (var_1_1 == ((signed short int) (128 - (var_1_7 + var_1_7))))) && ((var_1_5 < last_1_var_1_13) ? (var_1_7 == ((unsigned char) (var_1_8 + 1))) : 1)) && ((var_1_7 < (var_1_13 & (var_1_7 | var_1_16))) ? (var_1_9 == ((float) ((((var_1_10 + (var_1_11 - var_1_12)) < 0 ) ? -(var_1_10 + (var_1_11 - var_1_12)) : (var_1_10 + (var_1_11 - var_1_12)))))) : 1)) && ((! var_1_14) ? (var_1_13 == ((signed long int) var_1_8)) : ((var_1_7 > (var_1_7 + var_1_7)) ? (var_1_13 == ((signed long int) var_1_7)) : (var_1_13 == ((signed long int) var_1_16))))) && (var_1_15 == ((float) var_1_11))) && (var_1_16 == ((signed long int) var_1_7)) ; [L94] RET, EXPR property() [L94] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_13=-8, var_1_11=405, var_1_13=0, var_1_14=0, var_1_15=405, var_1_16=200, var_1_1=-272, var_1_5=0, var_1_7=200, var_1_8=0, var_1_9=513/2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.1s, OverallIterations: 12, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1770 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1762 mSDsluCounter, 2940 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2008 mSDsCounter, 129 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1906 IncrementalHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 129 mSolverCounterUnsat, 932 mSDtfsCounter, 1906 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=278occurred in iteration=11, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 959 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 1053 NumberOfCodeBlocks, 1053 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1039 ConstructedInterpolants, 0 QuantifiedInterpolants, 4648 SizeOfPredicates, 4 NumberOfNonLiveVariables, 389 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 1928/2016 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 18:44:43,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:44:46,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:44:46,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 18:44:46,670 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:44:46,670 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:44:46,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:44:46,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:44:46,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:44:46,713 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:44:46,713 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:44:46,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:44:46,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:44:46,713 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:44:46,713 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:44:46,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:44:46,714 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:44:46,715 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:44:46,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:44:46,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:46,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:44:46,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:44:46,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:44:46,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:44:46,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:46,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:44:46,719 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:44:46,719 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:44:46,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:44:46,719 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 18:44:46,720 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 18:44:46,720 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:44:46,720 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:44:46,720 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:44:46,720 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:44:46,721 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 207d54556929a93aa39d246b1f9a7e7f3ed779038a85bd758d97838d975fbe31 [2024-11-23 18:44:47,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:44:47,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:44:47,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:44:47,052 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:44:47,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:44:47,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-23 18:44:50,034 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/c23c2b3fd/8e206c1950d0424ca630530e2edf18d8/FLAG261cfd76e [2024-11-23 18:44:50,353 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:44:50,354 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i [2024-11-23 18:44:50,363 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/c23c2b3fd/8e206c1950d0424ca630530e2edf18d8/FLAG261cfd76e [2024-11-23 18:44:50,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/data/c23c2b3fd/8e206c1950d0424ca630530e2edf18d8 [2024-11-23 18:44:50,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:44:50,632 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:44:50,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:44:50,635 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:44:50,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:44:50,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:50" (1/1) ... [2024-11-23 18:44:50,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24889828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:50, skipping insertion in model container [2024-11-23 18:44:50,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:44:50" (1/1) ... [2024-11-23 18:44:50,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:44:50,854 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-23 18:44:50,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:44:50,951 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:44:50,963 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-33.i[913,926] [2024-11-23 18:44:51,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:44:51,032 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:44:51,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51 WrapperNode [2024-11-23 18:44:51,033 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:44:51,034 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:44:51,034 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:44:51,034 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:44:51,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,096 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-23 18:44:51,097 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:44:51,097 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:44:51,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:44:51,098 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:44:51,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,130 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:44:51,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,145 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,156 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,158 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:44:51,171 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:44:51,172 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:44:51,172 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:44:51,173 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (1/1) ... [2024-11-23 18:44:51,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:44:51,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:44:51,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:44:51,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:44:51,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:44:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 18:44:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 18:44:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 18:44:51,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:44:51,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:44:51,354 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:44:51,357 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:44:52,212 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-23 18:44:52,212 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:44:52,226 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:44:52,226 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 18:44:52,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:52 BoogieIcfgContainer [2024-11-23 18:44:52,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:44:52,229 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:44:52,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:44:52,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:44:52,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:44:50" (1/3) ... [2024-11-23 18:44:52,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771155fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:52, skipping insertion in model container [2024-11-23 18:44:52,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:44:51" (2/3) ... [2024-11-23 18:44:52,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@771155fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:44:52, skipping insertion in model container [2024-11-23 18:44:52,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:44:52" (3/3) ... [2024-11-23 18:44:52,236 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-33.i [2024-11-23 18:44:52,250 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:44:52,252 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-33.i that has 2 procedures, 41 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 18:44:52,311 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:44:52,323 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@73bd34f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:44:52,323 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 18:44:52,328 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:52,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 18:44:52,336 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:52,337 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:52,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:52,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:52,342 INFO L85 PathProgramCache]: Analyzing trace with hash -222403520, now seen corresponding path program 1 times [2024-11-23 18:44:52,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:44:52,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511980016] [2024-11-23 18:44:52,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:52,353 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:52,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:44:52,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:44:52,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 18:44:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:52,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:44:52,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:52,647 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 18:44:52,647 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:44:52,648 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:44:52,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511980016] [2024-11-23 18:44:52,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511980016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:52,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:44:52,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:44:52,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987947516] [2024-11-23 18:44:52,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:52,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:44:52,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:44:52,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:44:52,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:52,680 INFO L87 Difference]: Start difference. First operand has 41 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 30 states have internal predecessors, (39), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 18:44:52,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:52,710 INFO L93 Difference]: Finished difference Result 75 states and 117 transitions. [2024-11-23 18:44:52,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:44:52,713 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-23 18:44:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:52,721 INFO L225 Difference]: With dead ends: 75 [2024-11-23 18:44:52,723 INFO L226 Difference]: Without dead ends: 37 [2024-11-23 18:44:52,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:44:52,731 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:52,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:44:52,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-23 18:44:52,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-23 18:44:52,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 50 transitions. [2024-11-23 18:44:52,782 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 50 transitions. Word has length 66 [2024-11-23 18:44:52,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:52,785 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 50 transitions. [2024-11-23 18:44:52,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 18:44:52,785 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-11-23 18:44:52,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 18:44:52,790 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:52,790 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:52,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 18:44:52,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:52,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:52,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:52,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1057703046, now seen corresponding path program 1 times [2024-11-23 18:44:52,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:44:52,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [126653702] [2024-11-23 18:44:52,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:52,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:52,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:44:52,998 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:44:53,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 18:44:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:53,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 18:44:53,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 18:44:54,170 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:54,409 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:44:54,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [126653702] [2024-11-23 18:44:54,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [126653702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:54,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [815186848] [2024-11-23 18:44:54,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:54,410 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 18:44:54,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 18:44:54,414 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 18:44:54,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-23 18:44:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:54,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:44:54,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:55,104 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-23 18:44:55,104 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:44:55,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [815186848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:44:55,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:44:55,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-23 18:44:55,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972972444] [2024-11-23 18:44:55,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:44:55,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:44:55,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:44:55,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:44:55,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-23 18:44:55,108 INFO L87 Difference]: Start difference. First operand 37 states and 50 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:55,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:55,805 INFO L93 Difference]: Finished difference Result 96 states and 133 transitions. [2024-11-23 18:44:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:44:55,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 66 [2024-11-23 18:44:55,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:55,808 INFO L225 Difference]: With dead ends: 96 [2024-11-23 18:44:55,808 INFO L226 Difference]: Without dead ends: 62 [2024-11-23 18:44:55,809 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-23 18:44:55,810 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 41 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:55,810 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 210 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-23 18:44:55,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-23 18:44:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 37. [2024-11-23 18:44:55,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-23 18:44:55,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2024-11-23 18:44:55,819 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 66 [2024-11-23 18:44:55,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:55,820 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2024-11-23 18:44:55,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-23 18:44:55,821 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2024-11-23 18:44:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 18:44:55,822 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:55,822 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:55,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-23 18:44:56,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 18:44:56,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:56,223 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:44:56,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:44:56,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1116808390, now seen corresponding path program 1 times [2024-11-23 18:44:56,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:44:56,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137167408] [2024-11-23 18:44:56,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:56,225 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:44:56,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:44:56,227 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:44:56,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 18:44:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:56,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-23 18:44:56,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:57,117 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 18:44:57,117 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:57,346 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:44:57,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137167408] [2024-11-23 18:44:57,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137167408] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:57,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1795622361] [2024-11-23 18:44:57,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:44:57,347 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-23 18:44:57,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-23 18:44:57,351 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-23 18:44:57,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-23 18:44:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:44:57,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 18:44:57,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:44:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-23 18:44:58,425 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 18:44:58,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1795622361] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:44:58,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-23 18:44:58,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-23 18:44:58,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535988005] [2024-11-23 18:44:58,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-23 18:44:58,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 18:44:58,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:44:58,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 18:44:58,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-23 18:44:58,583 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 18:44:59,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:44:59,617 INFO L93 Difference]: Finished difference Result 112 states and 144 transitions. [2024-11-23 18:44:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 18:44:59,622 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 66 [2024-11-23 18:44:59,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:44:59,624 INFO L225 Difference]: With dead ends: 112 [2024-11-23 18:44:59,624 INFO L226 Difference]: Without dead ends: 78 [2024-11-23 18:44:59,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-23 18:44:59,626 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 49 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-23 18:44:59,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 164 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-23 18:44:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-23 18:44:59,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 63. [2024-11-23 18:44:59,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 41 states have internal predecessors, (45), 18 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 18:44:59,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2024-11-23 18:44:59,648 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 66 [2024-11-23 18:44:59,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:44:59,648 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2024-11-23 18:44:59,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-23 18:44:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2024-11-23 18:44:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 18:44:59,650 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:44:59,651 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:44:59,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-23 18:44:59,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-23 18:45:00,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-23 18:45:00,052 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:45:00,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:45:00,052 INFO L85 PathProgramCache]: Analyzing trace with hash 723781380, now seen corresponding path program 1 times [2024-11-23 18:45:00,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:45:00,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1915910983] [2024-11-23 18:45:00,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:45:00,053 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:45:00,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:45:00,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:45:00,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a70b7278-fcd7-46a8-9370-519c4c23f8cf/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-23 18:45:00,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:45:00,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-23 18:45:00,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:46:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 86 proven. 39 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-23 18:46:16,417 INFO L312 TraceCheckSpWp]: Computing backward predicates...